[ik-stingkt] /ɪkˈstɪŋkt/

no longer in existence; that has ended or died out:
an extinct species of fish.
no longer in use; obsolete:
an extinct custom.
extinguished; quenched; not burning.
having ceased eruption; no longer active:
an extinct volcano.
(of an animal or plant species) having no living representative; having died out
quenched or extinguished
(of a volcano) no longer liable to erupt; inactive
void or obsolete: an extinct political office

early 15c., from Latin extinctus/exstinctus, past participle of extinguere/exstinguere (see extinguish). Originally of fires; the sense of the condition of “dying out” of a family or a hereditary title, 1580s; of species by 1768. Cf. extinction.


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  • Extinction

    [ik-stingk-shuh n] /ɪkˈstɪŋk ʃən/ noun 1. the act of . 2. the fact or condition of being or . 3. suppression; abolition; annihilation: the extinction of an army. 4. Biology. the act or process of becoming ; a coming to an end or dying out: the extinction of a species. 5. Psychology. the reduction or […]

  • Extinctive

    [ik-stingk-tiv] /ɪkˈstɪŋk tɪv/ adjective 1. tending or serving to extinguish. /ɪkˈstɪŋktɪv/ adjective 1. tending or serving to extinguish or make extinct

  • Extine

    [ek-steen, -stahyn] /ˈɛk stin, -staɪn/ noun, Botany. 1. . /ˈɛkstɪn; -tiːn; -taɪn/ noun 1. another name for exine extine (ěk’stēn’, -stīn’) See exine.

  • Extinguish

    [ik-sting-gwish] /ɪkˈstɪŋ gwɪʃ/ verb (used with object) 1. to put out (a fire, light, etc.); put out the flame of (something burning or lighted): to extinguish a candle. 2. to put an end to or bring to an end; wipe out of existence; annihilate: to extinguish hope. 3. to obscure or eclipse, as by superior […]

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